package ds_industry_2025.ds.ds_06.T1

import org.apache.hudi.DataSourceWriteOptions._
import org.apache.hudi.QuickstartUtils.getQuickstartWriteConfigs
import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.functions._

import java.text.SimpleDateFormat
import java.util.{Calendar, Properties}
/*
    3、抽取shtd_store库中base_province的增量数据进入Hudi的ods_ds_hudi库中表base_province。根据ods_ds_hudi.
    base_province表中id作为增量字段，只将新增的数据抽入，字段名称、类型不变并添加字段create_time取当前时间，同时添加分区，分区
    字段为etl_date，类型为String，且值为当前比赛日的前一天日期（分区字段格式为yyyyMMdd）。id作为primaryKey，create_time作
    为preCombineField。使用spark-shell执行show partitions ods_ds_hudi.base_province命令，将结果截图粘贴至客户端桌面
    【Release\任务B提交结果.docx】中对应的任务序号下；
 */
object t3 {
  def main(args: Array[String]): Unit = {
    val spark = SparkSession.builder()
      .master("local[*]")
      .appName("t3")
      .config("hive.exec.dynamic.partition.mode","nonstrict")
      .config("spark.serializer","org.apache.spark.serializer.KryoSerializer")
      .config("spark.sql.extensions","org.apache.spark.sql.hudi.HoodieSparkSessionExtension")
      .enableHiveSupport()
      .getOrCreate()

    val conn=new Properties()
    conn.setProperty("user","root")
    conn.setProperty("password","123456")
    conn.setProperty("driver","com.mysql.jdbc.Driver")

    val day=Calendar.getInstance()
    val current_time=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(day.getTime)
    day.add(Calendar.DATE,-1)
    val yesterday=new SimpleDateFormat("yyyyMMdd").format(day.getTime)

    val ods_path="hdfs://192.168.40.110:9000/user/hive/warehouse/ods_ds_hudi.db/base_province"
    val max_id = spark.read.format("hudi").load(ods_path)
      .agg(max(col("id")))
      .first().get(0).toString

    spark.read.jdbc("jdbc:mysql://192.168.40.110:3306/shtd_store?useSSL=false","base_province",conn)
      .withColumn("create_time",to_timestamp(lit(current_time)))
      .where(col("id") > lit(max_id).cast("int"))
      .withColumn("etl_date",lit(yesterday))
      .write.format("hudi").mode("append")
      .options(getQuickstartWriteConfigs)
      .option(RECORDKEY_FIELD.key(),"id")
      .option(PRECOMBINE_FIELD.key(),"create_time")
      .option(PARTITIONPATH_FIELD.key(),"etl_date")
      .option("hoodie.table.name","base_province")
      .save(ods_path)






    spark.close()
  }

}
